Practical developer guides, architectural notes, and engineering deep dives written for speed and clarity.
Learn what's actually inside a JWT, how it works, what not to store in it, and common JWT security myths explained.
Learn how webhook signatures, HMAC verification, timestamps, and replay protection work. Build secure webhook endpoints that can defend against spoofed requests.
Learn how Discord verifies interaction requests using Ed25519 signatures, why invalid signatures are intentionally sent to test your endpoint, and how to implement signature verification step by step in Node.js.